The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2022
Filed:
Sep. 03, 2020
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Jun Akiyama, Tokyo, JP;
Kento Sakurai, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2834 (2013.01);
Abstract
The speaker device () includes a diaphragm (), an exciter () which vibrates in response to an input electrical signal, and a vibration-transmitter () which is connected to both the diaphragm () and the exciter () and transmits the vibration of the exciter () to the diaphragm (), in which the diaphragm () has a loss coefficient at 25° C. of 1×10or higher and the vibration-transmitter () has a specific elastic modulus of 20 mm/sor higher.